refactoring: renamed sat package to libervia.backend

sat/tools/common/regex.py

@@ -1,95 +0,0 @@
-#!/usr/bin/env python3
-
-
-# Salut à Toi: an XMPP client
-# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
-
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-""" regex tools common to backend and frontends """
-
-import re
-import unicodedata
-
-path_escape = {"%": "%25", "/": "%2F", "\\": "%5c"}
-path_escape_rev = {re.escape(v): k for k, v in path_escape.items()}
-path_escape = {re.escape(k): v for k, v in path_escape.items()}
-#  thanks to Martijn Pieters (https://stackoverflow.com/a/14693789)
-RE_ANSI_REMOVE = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
-RE_TEXT_URL = re.compile(r'[^a-zA-Z0-9,_]+')
-TEXT_MAX_LEN = 60
-# min lenght is currently deactivated
-TEXT_WORD_MIN_LENGHT = 0
-
-
-def re_join(exps):
-    """Join (OR) various regexes"""
-    return re.compile("|".join(exps))
-
-
-def re_sub_dict(pattern, repl_dict, string):
-    """Replace key, value found in dict according to pattern
-
-    @param pattern(basestr): pattern using keys found in repl_dict
-    @repl_dict(dict): keys found in this dict will be replaced by
-        corresponding values
-    @param string(basestr): string to use for the replacement
-    """
-    return pattern.sub(lambda m: repl_dict[re.escape(m.group(0))], string)
-
-
-path_escape_re = re_join(list(path_escape.keys()))
-path_escape_rev_re = re_join(list(path_escape_rev.keys()))
-
-
-def path_escape(string):
-    """Escape string so it can be use in a file path
-
-    @param string(basestr): string to escape
-    @return (str, unicode): escaped string, usable in a file path
-    """
-    return re_sub_dict(path_escape_re, path_escape, string)
-
-
-def path_unescape(string):
-    """Unescape string from value found in file path
-
-    @param string(basestr): string found in file path
-    @return (str, unicode): unescaped string
-    """
-    return re_sub_dict(path_escape_rev_re, path_escape_rev, string)
-
-
-def ansi_remove(string):
-    """Remove ANSI escape codes from string
-
-    @param string(basestr): string to filter
-    @return (str, unicode): string without ANSI escape codes
-    """
-    return RE_ANSI_REMOVE.sub("", string)
-
-
-def url_friendly_text(text):
-    """Convert text to url-friendly one"""
-    # we change special chars to ascii one,
-    # trick found at https://stackoverflow.com/a/3194567
-    text = unicodedata.normalize('NFD', text).encode('ascii', 'ignore').decode('utf-8')
-    text = RE_TEXT_URL.sub(' ', text).lower()
-    text = '-'.join([t for t in text.split() if t and len(t)>=TEXT_WORD_MIN_LENGHT])
-    while len(text) > TEXT_MAX_LEN:
-        if '-' in text:
-            text = text.rsplit('-', 1)[0]
-        else:
-            text = text[:TEXT_MAX_LEN]
-    return text